Back
Genesis is the first dual action anti-fall haircare range: FOR ALL WOMEN, IN ALL LIFESTYLES, WITH ALL DEGREE OF HAIR FALL.
Powered with a cocktail of highly efficient ingredients to instantly strengthen and thicken the hair fiber for an immediate fuller look with more fiber strength, more fiber retention* and -84% less hair-fall**.
*Clinical study, 99 people, 6 weeks use.
**hair-fall due to breakage. Instrumental test on Bain Nutri-fortifiant + Masque Reconstituant + Ampoule/Sérum Aminexil.
HOW DOES GENESIS WORK?
A double action for your client:
Instantly: PROTECTS AGAINST DAILY EXTERNAL AGGRESSOR AND ANTIOXIDES thanks to Ginger roots and Edelweiss native cells.
Long Term: STOP HAIR-FALL FORTIFIES HAIR ANCHORAGE & RETENTION AND REDUCE HAIR-FALL FROM THE ROOTS thanks to Aminexil.
Sérum Anti-Chute Fortifiant benefits:
- Silicone-free.
- Strengthens hair day after day.
- 97% less hair fall due to breakage from brushing*.
*System of Bain Hydra-Fortifiant + Fondant Renforcateur + Sérum Fortifiant vs Non-Conditioning Shampoo.
WHO IS IT FOR?
Genesis targets every woman with hair fall need that would efficient, convenient and peasurable with :
- Instant result of hair care
- Efficacy of anti hair fall solutions
Activate scalp with the Serum Anti-Chute Fortifiant.
Use once daily in the morning or before going to bed during a 6-week period :
Step 1: Take 1 pipette until the mark.
Step 2: Apply 3 drops by section and repeat on the whole scalp with 4 doses.
Step 3: Massage gently, do not rinse.
Learn more on Access
Ask more information about this productGenesis Sérum Anti-Chute Fortifiant is enriched with GINGER ROOT, EDELWEISS NATIVE CELLS and AMINEXIL.
GINGER ROOTS: Known for its ability to protect against daily external aggressors.
EDELWEISS NATIVE CELLS: Capable to resist the most extreme conditions and is known in skincare for its antioxidants. It also has power & collagen-preserving properties.
AMINEXIL: Helps hair to anchor more solidly into the scalp & prevents collagen from hardening around hair follicles to reduce hair-fall from the roots.
Rating & Reviews
Sammy
21.748268227E12 26/05/2025
Allergic reaction on scalp and face
The serum reduced by hairfall by a great deal. But I can’t continue using it because of the side effects. My scalp is extremely itchy and irritated every time I use it. My face has had a very horrible reaction too. Af first I thought it was due to a change in skincare routine. I switched back to my old routine but the skin reaction continued. I have never had an allergic reaction to any skin carr or haircare product in my life. This product is extremely strong and has a very strong fragrance.
Originaly posted on kerastase.ca
Reply from BEC
Hi there! We are sorry about your experience with our Genesis Anti-Breakage Fortifying Serum. We want to help in the best way we can. Therefore, we have forwarded your comments to the appropriate department for further assistance. A member from our team will get in touch with you shortly.
Stéphanie17
51.748120487E12 24/05/2025
Un rêve pour mes cheveux.
Produit très efficace, mais en rupture de stock à L' île Maurice .
Originaly posted on kerastase.fr
Anonymous
51.74785041E12 21/05/2025
Great product. Highly recommend.
Love the way it makes my scalp feel. It is not greasy
Originaly posted on kerastase-usa.com
char son
51.747608304E12 18/05/2025
good use
[This review was collected as part of a promotion.] its good for me，easy to use. works for my hairloss
Originaly posted on kerastase-usa.com
FirstTime_user
51.747729814E12 20/05/2025
Great smell! Seems to be working
Seems to be working well and my hair has improved a bit. I will continue using consistently for few months before making any sweeping claims
Originaly posted on kerastase-usa.com
Tara Kazimi
51.747517406E12 17/05/2025
Great product
[This review was collected as part of a promotion.] Smells great and my hair feels visibly more voluminous.
Originaly posted on kerastase-usa.com
Mt1121
51.747506606E12 17/05/2025
Helped with regrowth
[This review was collected as part of a promotion.] I had some patches where my riding helmet rubbed the hair away and this has helped with the regrowth and has stopped hair fall!
Originaly posted on kerastase-usa.com
Shyc1718
51.747505709E12 17/05/2025
AMAZING SERUM
[This review was collected as part of a promotion.] The scent is very strong but I personally love it. I am now on my second bottle of this and my hair has become significantly fuller and I have noticed tons of new baby hairs.
Originaly posted on kerastase-usa.com
Ames B
51.747504806E12 17/05/2025
10/10
I put my fine, low-porosity 3A hair through a lot of heat damage. I’m talking blowout brushes, thermal brushes, and of course, a straightener. Oh, and throw in an unstable thyroid, anemia, and other vitamin deficiencies in there as well (working on it!).
When I got COVID for the first time earlier this year I noticed quite a lot of hair shed. I’ve cried in the shower—it was THAT bad. So this, coupled with my love for heat tools, meant that I needed to protect my hair and nourish it as much as possible. I was also skeptical about this serum, but ohhhh my! Worth every cent. While I haven’t noticed a quick rate of hair growth (again, most of it being due to the heat tools as well as my own health problems), I’ve noticed that my hair is stronger and the fallout is basically nonexistent. Baby hairs are growing in. Balding patches are getting filled in. As much as it pains my wallet, this will be a happy repurchase for me time and time again. I love many Kerastase products, especially the curly ones, but this is my holy grail.
The trick is to use consistently!! As in, every day if possible. Massage it in for a few minutes and because the formula is so watery (which I prefer), it almost feels as though you don’t have anything sitting on your roots. I was afraid my hair would get greasy quicker but that wasn’t the case at all. I highly recommend this to anyone whose hair and scalp need extra nourishment.
Originaly posted on kerastase-usa.com
CathyP
51.747449003E12 16/05/2025
Worth the price, it really works
My salon recommended Kerastace Genesis because of hair loss. Amazing product great results. It smells nice, albeit expensive and long back orders
Originaly posted on kerastase-usa.com
Lizandra Doerffler
51.747369803E12 16/05/2025
The best product!
It helps me a lot to reduce my hair breakage!!!!!!
Originaly posted on kerastase-usa.com
Chris208
51.747338313E12 15/05/2025
Good hair serum
I like this hair serum a lot and it works for my hair
Originaly posted on kerastase-usa.com
Laura113
51.747596466E12 18/05/2025
Fantastic
[This review was collected as part of a promotion.] I love the scent of this serum! It feels refreshing on the scalp and leaves my hair soft and light. A great addition to my hair routine.
Originaly posted on kerastase-usa.com
Allie B
51.747314464E12 15/05/2025
Best purchase
Great product and i have seen the difference in a week
Originaly posted on kerastase.ca
LolaRM
51.747312208E12 15/05/2025
Holy Grail!
This is my holy grail scalp serum for hair loss. It’s one of the only things I’ve found that actually works. Repurchase always
Originaly posted on kerastase-usa.com
PaolaR
51.747314008E12 15/05/2025
A MUST HAVE!!
[This review was collected as part of a promotion.] BEST HAIR SERUM EVER!! It’s stopped the hair loss and you can see also new hair growing out after you start using it!!! THE BEST!!
Originaly posted on kerastase-usa.com
Madaisy
51.747179009E12 13/05/2025
Feels like it’s making a difference
Really feels like it’s making a difference. Doesn’t make your hair feel dirty or greasy. Feels kinda cold when you put it on which I personally really like.
Originaly posted on kerastase-usa.com
MFrench
11.747673022E12 19/05/2025
Smells like straight rubbing alcohol!!!
I have used this serum and honestly loved it. I bought another bottle as I was almost out of the serum. I decided to keep my old bottle and use it for oil I make for my scalp. I opened the new bottle and the strongest smell of straight rubbing alcohol hit me like a mac truck! It actually scared me. I grabbed my old bottle that I luckily kept and compared. The old bottle didn't smell of alcohol AT ALL! I have had this new bottle for a week and have been trying to read reviews and find out if something changed. I have found nothing. I cannot believe that putting this product on my hair will not damage and dry it out. I literally just cannot bring myself to use it after I have worked so hard on getting my hair healthy. Something doesnt seem right about this. Has anyone else experienced this?!?! I have recommended this product to friends in the past, but now I cannot consciously recommend this serum as I don't feel putting straight alcohol on hair and scalp is healthy.
Originaly posted on kerastase-usa.com
Reply from Consumer Care Center
Hi there, Thanks for your feedback on Genesis Serum Fortifiant Hair Serum. We understand your concern about the strong alcohol scent in your new bottle, especially since your previous one smelled differently. This isn't typical, and we want to help. To best assist you, please give us a call at 877-748-8357 Monday to Friday: 9:00 am to 5:30 pm. EST and provide case #41078562. Having the place of purchase and the lot code will help us investigate this further.
Alicia1011
51.747155608E12 13/05/2025
Really causes hair growth but takes time
[This review was collected as part of a promotion.] Really causes hair growth but takes time (maybe 2 bottles)
Originaly posted on kerastase-usa.com
Annape
41.747152911E12 13/05/2025
Great, but not the smell.
The product works great! But the smell is so bad that I find myself hesitant to actually use it. It’s very astringent.
Originaly posted on kerastase-usa.com
Sahua cintya
51.747062909E12 12/05/2025
As always more than 5 time purchase
[This review was collected as part of a promotion.] As always, more than 5 times purchase , never get disappointed at all
Originaly posted on kerastase-usa.com
Naty13
51.74714661E12 13/05/2025
Is perfect, I love it 😍
[This review was collected as part of a promotion.] I definitely loved it, my hair stopped falling out and grew with more volume 😍
Originaly posted on kerastase-usa.com
Dina NY
51.746992708E12 11/05/2025
Love this product
I love how it’s so easy to use, not greasy and smells amazing!
Originaly posted on kerastase-usa.com
Adie Nic
51.746970206E12 11/05/2025
Great product
The smell is amazing! I haven’t had it too long but so far I’ve noticed a decrease in my postpartum hair loss
Originaly posted on kerastase-usa.com
AshleyDayana
51.746826205E12 09/05/2025
Serum fortifant
[This review was collected as part of a promotion.] I just started using it, so I honestly cant say I’ve seen a huge difference yet, but I will review in a Few weeks
Originaly posted on kerastase-usa.com
Camilap
51.746826205E12 09/05/2025
Amazing
This product is amazing, smell delicious, It doesn't feel greasy, you get new hair, it's spectacular
Originaly posted on kerastase-usa.com
Adriana 08
51.746826205E12 09/05/2025
Excelente
[This review was collected as part of a promotion.] I love this product, my hair look strong ang energy
Originaly posted on kerastase-usa.com
Verito19
11.746983709E12 11/05/2025
My hair would fall out 10x more
My hair would fall out so much on this product… I thought it would help with hair fall etc. but it just made it worse considering it was always sold out & I had “back order” & keep in mind it’s expensive & based on reviews I thought this would help my hair be healthier or scalp at least but my hair would fall out like crazyyyy
Originaly posted on kerastase-usa.com
Reply from Consumer Care Center
Hi there, We are sorry to hear about the experience you had with Genesis Serum Fortifiant. We would like to speak with you directly about it. Please give us a call at 877-748-8357 Monday to Friday: 9:00 am to 5:30 pm. EST for assistance and provide the case #41031294. Looking forward to speaking with you. It would be helpful if you could have the product available when you call.
Caro22
51.746658807E12 07/05/2025
Spectacular!!
[This review was collected as part of a promotion.] I love the way that my hair fall has gotten better i short time.
Originaly posted on kerastase-usa.com
cc2004
51.746549007E12 06/05/2025
Good for thinning hairline
[This review was collected as part of a promotion.] With consistent use i found that this made a huge difference in my hair growth and contributed to a lot of new growth
Originaly posted on kerastase-usa.com
Abby S
41.746928802E12 10/05/2025
Less Breakage
[This review was collected as part of a promotion.] Went through first bottle in a month and have noticed less hair breakage when brushing. Will be repurchasing second bottle!
Originaly posted on kerastase-usa.com
JoselineO
51.746554407E12 06/05/2025
Just buy it!
If I could give 100 starss I would. I just simply love how it smeellssssss!!!!
Originaly posted on kerastase-usa.com
Elena07
51.746495003E12 05/05/2025
Amazing
[This review was collected as part of a promotion.] Este suero ha sido milagroso para mi, me ha ayudado mucho a detener la caída y ha fortalecido mi cuero cabelludo, simplemente el mejor!!!
Originaly posted on kerastase-usa.com
Annak8
51.746475206E12 05/05/2025
A must have
An absolute must have if you are trying to grow your hair!
Originaly posted on kerastase-usa.com
Yilimr
51.74643381E12 05/05/2025
El mejor suero capilar
[This review was collected as part of a promotion.] Es demasiado buno lo hecomprado 2vese y locomprare nuevamente
Originaly posted on kerastase-usa.com
Jessicarae
51.746467112E12 05/05/2025
I love this serum, so easy to apply!
This serum works great in tandem with the serum in the gold bottle, I can’t remember how to spell it. But I was malnourished after having brain surgery and experienced hair fall. It happened so fast and now I’m on the Genesis system and this serum is really helpful! I’ve been using it for about a year and a half and my hair is stronger, it’s not falling out in the shower and I have significant regrowth. I love it and will continue to use it to keep my hair strong and growing!
Originaly posted on kerastase-usa.com
Lay456
51.746474309E12 05/05/2025
Baby hairs back
[This review was collected as part of a promotion.] I love this serum have repurchased it twice now. I noticed my baby hairs growing back
Originaly posted on kerastase-usa.com
AllieO
51.74645811E12 05/05/2025
Love!
[This review was collected as part of a promotion.] Been using this product line for a while now and my hair feels and looks so much healthier! Would highly recommend. Plus it smells amazing!!
Originaly posted on kerastase-usa.com
Viola S
41.746343806E12 04/05/2025
Kérastase genesis serum ✨
I really liked the application and the smell but I didn’t see much results as I expected and when using the suggested amount it ran out quickly.
Originaly posted on kerastase-usa.com
PaolaD
51.746416308E12 04/05/2025
The solution to my problem.
My hair loss stopped in no time. I like that it's a light but effective product; I don't feel any residue on my scalp. I would repurchase it as often as necessary.
Originaly posted on kerastase-usa.com
CandiceRoss
51.746416337E12 04/05/2025
Definitely less hair loss and breakage
I have been using the Genesis shampoo and conditioner for about a year and have noticed a real difference in the condition of my hair. I have shine and have alot less breakage and hair loss. It definitely works. It helped almost immediately when I started using it.
I am thinking of adding a hair oil or serum and struggling to decide which one to choose.
Originaly posted on kerastase-usa.com
Sunshineshy
51.746416407E12 04/05/2025
Work good on me
[This review was collected as part of a promotion.] I love it very much! This help my hair grow as I can see. It doesn't sticky like other products and easy to use. I also love the scent too.
Originaly posted on kerastase-usa.com
Breanna16
41.746416419E12 04/05/2025
Great product!
I've gotten a few bottles of this and I genuinely love it! The smell is a little much at times so if you have a sensitive nose then this product probably isn't for you. But when it comes to the product itself ive seen a big difference in my hair!
Originaly posted on kerastase-usa.com
acc9090
51.746416424E12 04/05/2025
Amazing
[This review was collected as part of a promotion.] Really helped by hair grow and reduced it from thinning.
Originaly posted on kerastase-usa.com
Matin sadri
51.746416433E12 04/05/2025
Amazing product
[This review was collected as part of a promotion.] Its a life changer
As soon as I used this serum I can see how much my hair changed
I’m in love
I’m so happy
Originaly posted on kerastase-usa.com
Jana C
11.746042213E12 30/04/2025
Nope.
Product is thin liquid & drips all over scalp & hair. This was a big deal for me because it felt very drying to my hair. And I couldn’t keep it isolated to scalp. Did not see any difference in hair regrowth or thinning.
Originaly posted on kerastase-usa.com
Reply from Consumer Care Center
Hi Jana, We're so sorry to hear about your experience with Genesis Serum Fortifiant Hair Serum. We'd like to collect more information and find a solution. Please give us a call at 877-748-8357 Monday to Friday: 9:00 am to 5:30 pm. EST and provide case #40909148. We're looking forward to speaking with you.
Jatnna
51.74641646E12 04/05/2025
In Love
I see my baby hair growing and my hair is longer and healthier
Originaly posted on kerastase-usa.com
Camila a
51.746416474E12 04/05/2025
Game changer
I’ve been using the Kérastase Serum Fortifiant for a few weeks now, and I can honestly say it’s a game changer for anyone struggling with hair fall or weak roots. I started seeing less breakage within the first 10 days, and my scalp feels healthier and more balanced overall
Originaly posted on kerastase-usa.com
lizyta1980
51.746416481E12 04/05/2025
Fantastic
the best product to recover my damaged hair :) it is my 3rd bottle using
Originaly posted on kerastase-usa.com
Coco47
51.746115273E12 01/05/2025
Une repousse visible
Je connaissais déjà ce sérum pour l'avoir utilisé avec un résultat probant ma coiffeuse m'avait signalé la repousse de cheveux lors d'un rendez-vous du coup je refais une cure en espérant que ça soit aussi bénéfique que la fois précédente
Originaly posted on kerastase.fr
Rinala
51.746416508E12 04/05/2025
Kerastase Genesis
I bought this product hoping it would help with my thinning hair, and I’ve been genuinely impressed with the results. After just three weeks of consistent use, I started noticing a real difference—my hair looks fuller, feels healthier, and even seems to be growing in areas that were noticeably thinning before. It’s given me a big boost of confidence, and I couldn’t be happier with the progress so far. If you’re struggling with thinning hair like I was, I can’t recommend this product enough—it truly works!
Originaly posted on kerastase-usa.com
Emily8991
51.746018907E12 30/04/2025
Hair feels soft
[This review was collected as part of a promotion.] Great for daily use. Feels nice and not oily. Would buy again.
Originaly posted on kerastase-usa.com
WatterK
51.746018907E12 30/04/2025
Must have
[This review was collected as part of a promotion.] I started using this last year to help prevent breakage, and its working!
Originaly posted on kerastase-usa.com
Lilianne
51.746027012E12 30/04/2025
Impresionada
[This review was collected as part of a promotion.] Me encantó este producto tiene un olor espectacular espero que cumpla lo que promete
Originaly posted on kerastase-usa.com
TJPpnw
51.745938809E12 29/04/2025
Reduces hair shed
I was very concerned about hair shed several months ago and read about this product. I am on my 4th bottle and my hair shed is greatly reduced.
Originaly posted on kerastase-usa.com
Britany M
51.746416557E12 04/05/2025
PURCHASE IT RN.
WOW. I have only used it for a few weeks now and my hair is already so noticeably soft and healthier. I have dealt with damage from dying and using heat products all the time and now I started my hair care journey and Kérastase was obviously #1 on my list to purchase and I was NOT disappointed. JUST PURCHASE IT ALREADY THIS STUFF IS AMAZING.
Originaly posted on kerastase-usa.com
allieop
51.746416563E12 04/05/2025
The BEST product to have in your stash
[This review was collected as part of a promotion.] baby hair growth in all my bald spots! love it!!!!
Originaly posted on kerastase-usa.com
Anonymous
51.745855121E12 28/04/2025
Es muy buen producto
[This review was collected as part of a promotion.] Tengo tres semanas usando este serum y si he visto cambios en mi cabello menos caída
Originaly posted on kerastase-usa.com
Aleshia
51.745699407E12 26/04/2025
Nice for fine hair
Only giving it a 4 because I haven’t used it long enough to see results. Love the consistency and the feel in the scalp
Originaly posted on kerastase-usa.com
Kei2110
51.745688609E12 26/04/2025
Excelente producto, me encanta
[This review was collected as part of a promotion.] Mi cabello está más fuerte y brillante. Antes de comenzar a utilizarlo experimentaba mucha pérdida de cabello, pero desde que tengo el suero he notado los cambios. Excelente!
Originaly posted on kerastase-usa.com
Eunika
51.745641804E12 26/04/2025
My favorite
I would buy a 1000 times more, love the smell! It works for my hair
Originaly posted on kerastase-usa.com
Amalfabars
51.745625605E12 25/04/2025
Great product
I've been using this product for a week and I'm seeing results already
Originaly posted on kerastase-usa.com
restingniceface
51.746416594E12 04/05/2025
Incredible scent!
This product works as intended! My hair breaks much less and I have experienced much less shedding. The scent in unbelievably intriguing. Everyone who is near me compliments it! It's my holy grail for these two reasons! Just get it!
Originaly posted on kerastase-usa.com
Ssssszz
51.745505008E12 24/04/2025
Love it
Love it - have not used it long enough to see a difference in hair growth but it does not leave my hair feeling greasy.
Originaly posted on kerastase-usa.com
Amber33
51.745461804E12 23/04/2025
Smells so good, feels so good!
[This review was collected as part of a promotion.] I’ve been using this serum for a few weeks now and I love it! It smells so good, and I love how refreshed it makes my scalp feel! It’s just what I need before I go to bed, and my husband loves the smell too!
Originaly posted on kerastase-usa.com
tinyng
51.74641662E12 04/05/2025
Must have for hair loss
[This review was collected as part of a promotion.] My hair shedding less and less after using this. And I know it didn’t mention that but it does help with new hair grow.
Originaly posted on kerastase-usa.com
Lori31
51.745464507E12 23/04/2025
Good Serum
[This review was collected as part of a promotion.] I been only using this product for almost a month and I see that my hair is breaking less and falling less. I like this product.
Originaly posted on kerastase-usa.com
Marina Paola
51.746416634E12 04/05/2025
Amazing!!!!
I'm now on my second bottle, and I've found that my shedding is finally in the normal range, and my hair looks healthier than ever. I love it
Originaly posted on kerastase-usa.com
GulyaM
51.745334908E12 22/04/2025
Hair growth
It helped my hair to grow really fast. I purchased couple times and still using it
Originaly posted on kerastase-usa.com
Sakura
51.745255709E12 21/04/2025
Scalp treatment!
Smell good, scalp is fresh!
How feel good after massage with this
Originaly posted on kerastase-usa.com
Anonymous
51.74524581E12 21/04/2025
Fingers crossed
So far, so good. I bought two bottles of this serum to test and see if it works.
Originaly posted on kerastase-usa.com
Jessi90
51.745214304E12 21/04/2025
Amazing 😍😍😍😍
The best serum in this world it’s worth to use it 😍😍😍😍😍😍
Originaly posted on kerastase-usa.com
libbyb
41.746416659E12 04/05/2025
Smells Great
[This review was collected as part of a promotion.] Love the way this product smells. I've been using it for months now, and it makes my hair feel so thick and beautiful! It's great.
Originaly posted on kerastase-usa.com
Knd2192
51.745335814E12 22/04/2025
Doing Okay So Far
I havent been using it long but my review is based on the fact that I can use it on dry hair and it does make your scalp/hair greasy or anything. My only thing is the smell is subtle but strong. I try not to use it on dry hair right before bed otherwise the smell can be a little strong when trying to sleep. I would recommend just making sure the product dries fully if it bothers you, after that the smell is no issue.
Originaly posted on kerastase-usa.com
Floria
51.745151394E12 20/04/2025
Bubu123
51.745260213E12 21/04/2025
It works!
[This review was collected as part of a promotion.] This serum significantly decreases hair loss. Definitely will purchase again!
Originaly posted on kerastase-usa.com
Shelbyh
51.745269209E12 21/04/2025
Love
So happy it’s back in stock, found this product last fall and it works!
Originaly posted on kerastase-usa.com
Salma R
51.745019966E12 18/04/2025
Je suis à mon 3ème flacon soit 3 mois d’utilisation. Je perdais énormément mes cheveux par touffes, ça me déprimait de voir autant de cheveux sur le parquet et sur la brosse. Au bout de 2 semaines d’utilisation, ma perte de cheveux a diminué et j’ai beaucoup de bébés cheveux remarqués également par mon coiffeur. Je recommande +++ ça a sauvé mes cheveux
Originaly posted on kerastase.fr
nikhi98
51.74499381E12 18/04/2025
amazing
[This review was collected as part of a promotion.] i really liked the product, it is soo good,less hair fall
Originaly posted on kerastase-usa.com
AmandaMarieH
51.74498841E12 18/04/2025
Love this product!
I’m still on my first bottle, but so far I am loving this product!
Originaly posted on kerastase-usa.com
Brenda6
51.744767004E12 15/04/2025
Janelle551
41.744810208E12 16/04/2025
Trust the process
[This review was collected as part of a promotion.] I’ve been using this serum for 1 month and I started to notice a difference in the quality of my hair. It appears to be thicker and healthier. I love that this serum is not oily and smells good.
Originaly posted on kerastase-usa.com
fluennn
51.74469233E12 15/04/2025
Pretty good
I don’t think the scent is overwhelming like some say. I like it so far
Originaly posted on kerastase-usa.com
Jess97
51.744610405E12 14/04/2025
Best Hair Serum
I have been using this serum since I got it and see such a difference in my hair. My hair seems shinier and stronger than before yet the serum doesn’t weigh my hair down like others I have tried
Originaly posted on kerastase-usa.com
Cierra
11.744645453E12 14/04/2025
Strong perfume
I had really high hopes, it just didn’t work for me.. the perfume in this product is so strong that it bothered my asthma and gave me headaches before bed…
Originaly posted on kerastase-usa.com
Reply from Consumer Care Center
Hello Cierra. Thank you for reaching out about Serum Fortifiant Hair Serum. We would like to speak with you directly about it. Please give us a call at 877-748-8357, 9:00 am - 5:30 pm ET for assistance and provide the case #40656154. It would be helpful if you could have the products available when you call. Looking forward to speaking with you.
Zesh04
41.744435804E12 12/04/2025
Loved
This has lasted so long! Love this product and will buy again!
Originaly posted on kerastase-usa.com
juliet22
51.744590604E12 13/04/2025
Amazing scalp serum
[This review was collected as part of a promotion.] Prevented fallout due to stress, which I noticed a few weeks into using the product daily. kept my hair strong, less breakage.
Originaly posted on kerastase-usa.com
La negra
51.744330508E12 10/04/2025
Love the texture of the product. Is great for hair
Just ordered my second bottle. This product is excellent. My hair shading has diminished
Originaly posted on kerastase-usa.com
Oliver88
51.74432151E12 10/04/2025
The best hair serum to use.
[This review was collected as part of a promotion.] My hair has become shinier and softer and fluffier, I've already used up one bottle and I'll keep renewing my subscription.
Originaly posted on kerastase-usa.com
Oks1212
51.74430531E12 10/04/2025
Amazing
Love this so much! I was waiting to get it and now i can't live without it, just ordered a second bottle.
Originaly posted on kerastase-usa.com
Nae267
51.744460112E12 12/04/2025
Impressed!
[This review was collected as part of a promotion.] Really made my hair grow! My baby hairs are growing fast
Originaly posted on kerastase-usa.com
CurlyWH
51.744261209E12 10/04/2025
Fortifiant Hair Serum
[This review was collected as part of a promotion.] Love this product! Seems to be helping resolve hair loss due to damage
Originaly posted on kerastase-usa.com
Dswind
51.746416707E12 04/05/2025
Love it and see a difference
I got this product because I felt like my normally thick hair was getting thinner as I got older. I have been using this and see little baby hairs growing!
Originaly posted on kerastase-usa.com
NicLat
41.744254903E12 09/04/2025
Works well!
[This review was collected as part of a promotion.] I have thinning hair that is falling out. I have an appointment with a derm to determine the cause, but in the meantime I've been using this product.
Originaly posted on kerastase-usa.com
Mari82
51.744406109E12 11/04/2025
Best hair serum!
Used this hair serum for several weeks and I noticed barely any hair fall out it’s literally magic in a bottle!
Originaly posted on kerastase-usa.com
Olive11
51.744200914E12 09/04/2025
Alexander kre
51.744097408E12 08/04/2025
Loved!
Loved loved loved noticed less fall out and grew out my baby hairs
Originaly posted on kerastase-usa.com
Hillarymdza
51.744240506E12 09/04/2025
Worth it
Este producto vale la pena , se que para algunas personas puede estar algo caro pero definitivamente sirve ! Me encanta huele como perfume y definitivamente lo volvería a comprar ! Ya llevo dos botellas y lo súper recomiendo
Originaly posted on kerastase-usa.com
Paulinalee
51.744054213E12 07/04/2025
Very good serum
I really like this serum. This is my third purchase. My hair shedding decreased. I just dont like the overpowering frangrance, but this issue refers to all kerastase products. Some of then would make me sneeze a lot. But if it comes to what it promises, it delivers, and the bottle last about a month. I like that its watery.
Originaly posted on kerastase-usa.com
Esmeee
41.744050612E12 07/04/2025
Amazing
I love how they first of all it doesn’t leave your hair oily and I have actually noticed a difference with my hair falling out but I just hate how it’s expensive and it runs out first due to having to use it 4 times a day
Originaly posted on kerastase-usa.com
Anti-Breakage Fortifying Hair Serum 90ml
Kerastase - Genesis
Daily anti hair-fall fortifying serum for weakened hair, prone to falling. The serum improves hair resistance to minimize hair-fall and maximize beautiful hair.
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1 (877) 625-4735 